Few quick questions (i will be an iPhone newbie on thursday : - I guess the only way i can tether my iP4 to my 10v hackintosh without paying o2's 'extra charges' (i pay for unlimited data - who cares which device i use it with!!!!) will be by jailbreaking right? Any other way?...because i hear jailbreaking cause problems including sluggishness and to be honest i'd prefer not unless it was a must. - I will have a long train journey back home from Apple Store and then shortly afterwards will have another long train journey. If i put my already activated micro-sim into my iP4 at the store, what will i be able to do with it on my train back...or will i need to 'register' via iTunes first before i can mess with it? - If I have to register it via iTunes before i can do anything with it then i guess i can do this on a Mac at the store right (making sure i sign out properly after having finished doing this ofcourse)? - I have already downloaded the apps i will be installing via iTunes to my netbook. i'm guessing i simply plug the ip4 into my netbook and install them on the way home...or will i need an internet connection to install already 'downloaded' apps?